Answer:
31
Step-by-step explanation:
-4+16+19=31
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!
Step-by-step explanation:
False here are extra words tho make 20 words

So this means they just fliped the numbers around
Answer:
C
Step-by-step explanation:
at least two have to be in the same place (i think), and that’s the only one that does that